Optimize dartium dart:html bindings so real world application performance is acceptable. Improves d…

sdk/lib/web_audio/dartium/web_audio_dartium.dart

 /**
  * High-fidelity audio programming in the browser.
  */
 library dart.dom.web_audio;
 
 import 'dart:async';
 import 'dart:collection';
 import 'dart:_internal';
 import 'dart:html';
 import 'dart:html_common';
 import 'dart:nativewrappers';
 import 'dart:typed_data';
 import 'dart:_blink' as _blink;
 import 'dart:js' as js;
 // DO NOT EDIT
 // Auto-generated dart:audio library.
 
 
 
 
 // FIXME: Can we make this private?
 @Deprecated("Internal Use Only")
 final web_audioBlinkMap = {
-  'AnalyserNode': () => AnalyserNode,
-  'AudioBuffer': () => AudioBuffer,
-  'AudioBufferSourceNode': () => AudioBufferSourceNode,
-  'AudioContext': () => AudioContext,
-  'AudioDestinationNode': () => AudioDestinationNode,
-  'AudioListener': () => AudioListener,
-  'AudioNode': () => AudioNode,
-  'AudioParam': () => AudioParam,
-  'AudioProcessingEvent': () => AudioProcessingEvent,
-  'AudioSourceNode': () => AudioSourceNode,
-  'BiquadFilterNode': () => BiquadFilterNode,
-  'ChannelMergerNode': () => ChannelMergerNode,
-  'ChannelSplitterNode': () => ChannelSplitterNode,
-  'ConvolverNode': () => ConvolverNode,
-  'DelayNode': () => DelayNode,
-  'DynamicsCompressorNode': () => DynamicsCompressorNode,
-  'GainNode': () => GainNode,
-  'MediaElementAudioSourceNode': () => MediaElementAudioSourceNode,
-  'MediaStreamAudioDestinationNode': () => MediaStreamAudioDestinationNode,
-  'MediaStreamAudioSourceNode': () => MediaStreamAudioSourceNode,
-  'OfflineAudioCompletionEvent': () => OfflineAudioCompletionEvent,
-  'OfflineAudioContext': () => OfflineAudioContext,
-  'OscillatorNode': () => OscillatorNode,
-  'PannerNode': () => PannerNode,
-  'PeriodicWave': () => PeriodicWave,
-  'ScriptProcessorNode': () => ScriptProcessorNode,
-  'StereoPannerNode': () => StereoPannerNode,
-  'WaveShaperNode': () => WaveShaperNode,
-
-};
-
-// FIXME: Can we make this private?
-@Deprecated("Internal Use Only")
-final web_audioBlinkFunctionMap = {
-  'AnalyserNode': () => AnalyserNode.internalCreateAnalyserNode,
-  'AudioBuffer': () => AudioBuffer.internalCreateAudioBuffer,
-  'AudioBufferSourceNode': () => AudioBufferSourceNode.internalCreateAudioBufferSourceNode,
-  'AudioContext': () => AudioContext.internalCreateAudioContext,
-  'AudioDestinationNode': () => AudioDestinationNode.internalCreateAudioDestinationNode,
-  'AudioListener': () => AudioListener.internalCreateAudioListener,
-  'AudioNode': () => AudioNode.internalCreateAudioNode,
-  'AudioParam': () => AudioParam.internalCreateAudioParam,
-  'AudioProcessingEvent': () => AudioProcessingEvent.internalCreateAudioProcessingEvent,
-  'AudioSourceNode': () => AudioSourceNode.internalCreateAudioSourceNode,
-  'BiquadFilterNode': () => BiquadFilterNode.internalCreateBiquadFilterNode,
-  'ChannelMergerNode': () => ChannelMergerNode.internalCreateChannelMergerNode,
-  'ChannelSplitterNode': () => ChannelSplitterNode.internalCreateChannelSplitterNode,
-  'ConvolverNode': () => ConvolverNode.internalCreateConvolverNode,
-  'DelayNode': () => DelayNode.internalCreateDelayNode,
-  'DynamicsCompressorNode': () => DynamicsCompressorNode.internalCreateDynamicsCompressorNode,
-  'GainNode': () => GainNode.internalCreateGainNode,
-  'MediaElementAudioSourceNode': () => MediaElementAudioSourceNode.internalCreateMediaElementAudioSourceNode,
-  'MediaStreamAudioDestinationNode': () => MediaStreamAudioDestinationNode.internalCreateMediaStreamAudioDestinationNode,
-  'MediaStreamAudioSourceNode': () => MediaStreamAudioSourceNode.internalCreateMediaStreamAudioSourceNode,
-  'OfflineAudioCompletionEvent': () => OfflineAudioCompletionEvent.internalCreateOfflineAudioCompletionEvent,
-  'OfflineAudioContext': () => OfflineAudioContext.internalCreateOfflineAudioContext,
-  'OscillatorNode': () => OscillatorNode.internalCreateOscillatorNode,
-  'PannerNode': () => PannerNode.internalCreatePannerNode,
-  'PeriodicWave': () => PeriodicWave.internalCreatePeriodicWave,
-  'ScriptProcessorNode': () => ScriptProcessorNode.internalCreateScriptProcessorNode,
-  'StereoPannerNode': () => StereoPannerNode.internalCreateStereoPannerNode,
-  'WaveShaperNode': () => WaveShaperNode.internalCreateWaveShaperNode,
+  'AnalyserNode': () => AnalyserNode.instanceRuntimeType,
+  'AudioBuffer': () => AudioBuffer.instanceRuntimeType,
+  'AudioBufferSourceNode': () => AudioBufferSourceNode.instanceRuntimeType,
+  'AudioContext': () => AudioContext.instanceRuntimeType,
+  'AudioDestinationNode': () => AudioDestinationNode.instanceRuntimeType,
+  'AudioListener': () => AudioListener.instanceRuntimeType,
+  'AudioNode': () => AudioNode.instanceRuntimeType,
+  'AudioParam': () => AudioParam.instanceRuntimeType,
+  'AudioProcessingEvent': () => AudioProcessingEvent.instanceRuntimeType,
+  'AudioSourceNode': () => AudioSourceNode.instanceRuntimeType,
+  'BiquadFilterNode': () => BiquadFilterNode.instanceRuntimeType,
+  'ChannelMergerNode': () => ChannelMergerNode.instanceRuntimeType,
+  'ChannelSplitterNode': () => ChannelSplitterNode.instanceRuntimeType,
+  'ConvolverNode': () => ConvolverNode.instanceRuntimeType,
+  'DelayNode': () => DelayNode.instanceRuntimeType,
+  'DynamicsCompressorNode': () => DynamicsCompressorNode.instanceRuntimeType,
+  'GainNode': () => GainNode.instanceRuntimeType,
+  'MediaElementAudioSourceNode': () => MediaElementAudioSourceNode.instanceRuntimeType,
+  'MediaStreamAudioDestinationNode': () => MediaStreamAudioDestinationNode.instanceRuntimeType,
+  'MediaStreamAudioSourceNode': () => MediaStreamAudioSourceNode.instanceRuntimeType,
+  'OfflineAudioCompletionEvent': () => OfflineAudioCompletionEvent.instanceRuntimeType,
+  'OfflineAudioContext': () => OfflineAudioContext.instanceRuntimeType,
+  'OscillatorNode': () => OscillatorNode.instanceRuntimeType,
+  'PannerNode': () => PannerNode.instanceRuntimeType,
+  'PeriodicWave': () => PeriodicWave.instanceRuntimeType,
+  'ScriptProcessorNode': () => ScriptProcessorNode.instanceRuntimeType,
+  'StereoPannerNode': () => StereoPannerNode.instanceRuntimeType,
+  'WaveShaperNode': () => WaveShaperNode.instanceRuntimeType,
 
 };
 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 // WARNING: Do not edit - generated code.
 
 
 @DocsEditable()
 @DomName('AnalyserNode')
 // https://dvcs.w3.org/hg/audio/raw-file/tip/webaudio/specification.html#AnalyserNode
 @Experimental()
 class AnalyserNode extends AudioNode {
   // To suppress missing implicit constructor warnings.
   factory AnalyserNode._() { throw new UnsupportedError("Not supported"); }
 
 
   @Deprecated("Internal Use Only")
-  static AnalyserNode internalCreateAnalyserNode() {
-    return new AnalyserNode._internalWrap();
-  }
-
-  external factory AnalyserNode._internalWrap();
+  external static Type get instanceRuntimeType;
 
   @Deprecated("Internal Use Only")
   AnalyserNode.internal_() : super.internal_();
 
 
   @DomName('AnalyserNode.fftSize')
   @DocsEditable()
-  int get fftSize => _blink.BlinkAnalyserNode.instance.fftSize_Getter_(unwrap_jso(this));
+  int get fftSize => _blink.BlinkAnalyserNode.instance.fftSize_Getter_(this);
   
   @DomName('AnalyserNode.fftSize')
   @DocsEditable()
-  set fftSize(int value) => _blink.BlinkAnalyserNode.instance.fftSize_Setter_(unwrap_jso(this), value);
+  set fftSize(int value) => _blink.BlinkAnalyserNode.instance.fftSize_Setter_(this, value);
   
   @DomName('AnalyserNode.frequencyBinCount')
   @DocsEditable()
-  int get frequencyBinCount => _blink.BlinkAnalyserNode.instance.frequencyBinCount_Getter_(unwrap_jso(this));
+  int get frequencyBinCount => _blink.BlinkAnalyserNode.instance.frequencyBinCount_Getter_(this);
   
   @DomName('AnalyserNode.maxDecibels')
   @DocsEditable()
-  num get maxDecibels => _blink.BlinkAnalyserNode.instance.maxDecibels_Getter_(unwrap_jso(this));
+  num get maxDecibels => _blink.BlinkAnalyserNode.instance.maxDecibels_Getter_(this);
   
   @DomName('AnalyserNode.maxDecibels')
   @DocsEditable()
-  set maxDecibels(num value) => _blink.BlinkAnalyserNode.instance.maxDecibels_Setter_(unwrap_jso(this), value);
+  set maxDecibels(num value) => _blink.BlinkAnalyserNode.instance.maxDecibels_Setter_(this, value);
   
   @DomName('AnalyserNode.minDecibels')
   @DocsEditable()
-  num get minDecibels => _blink.BlinkAnalyserNode.instance.minDecibels_Getter_(unwrap_jso(this));
+  num get minDecibels => _blink.BlinkAnalyserNode.instance.minDecibels_Getter_(this);
   
   @DomName('AnalyserNode.minDecibels')
   @DocsEditable()
-  set minDecibels(num value) => _blink.BlinkAnalyserNode.instance.minDecibels_Setter_(unwrap_jso(this), value);
+  set minDecibels(num value) => _blink.BlinkAnalyserNode.instance.minDecibels_Setter_(this, value);
   
   @DomName('AnalyserNode.smoothingTimeConstant')
   @DocsEditable()
-  num get smoothingTimeConstant => _blink.BlinkAnalyserNode.instance.smoothingTimeConstant_Getter_(unwrap_jso(this));
+  num get smoothingTimeConstant => _blink.BlinkAnalyserNode.instance.smoothingTimeConstant_Getter_(this);
   
   @DomName('AnalyserNode.smoothingTimeConstant')
   @DocsEditable()
-  set smoothingTimeConstant(num value) => _blink.BlinkAnalyserNode.instance.smoothingTimeConstant_Setter_(unwrap_jso(this), value);
+  set smoothingTimeConstant(num value) => _blink.BlinkAnalyserNode.instance.smoothingTimeConstant_Setter_(this, value);
   
   @DomName('AnalyserNode.getByteFrequencyData')
   @DocsEditable()
-  void getByteFrequencyData(Uint8List array) => _blink.BlinkAnalyserNode.instance.getByteFrequencyData_Callback_1_(unwrap_jso(this), unwrap_jso(array));
+  void getByteFrequencyData(Uint8List array) => _blink.BlinkAnalyserNode.instance.getByteFrequencyData_Callback_1_(this, array);
   
   @DomName('AnalyserNode.getByteTimeDomainData')
   @DocsEditable()
-  void getByteTimeDomainData(Uint8List array) => _blink.BlinkAnalyserNode.instance.getByteTimeDomainData_Callback_1_(unwrap_jso(this), unwrap_jso(array));
+  void getByteTimeDomainData(Uint8List array) => _blink.BlinkAnalyserNode.instance.getByteTimeDomainData_Callback_1_(this, array);
   
   @DomName('AnalyserNode.getFloatFrequencyData')
   @DocsEditable()
-  void getFloatFrequencyData(Float32List array) => _blink.BlinkAnalyserNode.instance.getFloatFrequencyData_Callback_1_(unwrap_jso(this), unwrap_jso(array));
+  void getFloatFrequencyData(Float32List array) => _blink.BlinkAnalyserNode.instance.getFloatFrequencyData_Callback_1_(this, array);
   
   @DomName('AnalyserNode.getFloatTimeDomainData')
   @DocsEditable()
   @Experimental() // untriaged
-  void getFloatTimeDomainData(Float32List array) => _blink.BlinkAnalyserNode.instance.getFloatTimeDomainData_Callback_1_(unwrap_jso(this), unwrap_jso(array));
+  void getFloatTimeDomainData(Float32List array) => _blink.BlinkAnalyserNode.instance.getFloatTimeDomainData_Callback_1_(this, array);
   
 }
 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 // WARNING: Do not edit - generated code.
 
 
 @DocsEditable()
 @DomName('AudioBuffer')
 // https://dvcs.w3.org/hg/audio/raw-file/tip/webaudio/specification.html#AudioBuffer-section
 @Experimental()
 class AudioBuffer extends DartHtmlDomObject {
   // To suppress missing implicit constructor warnings.
   factory AudioBuffer._() { throw new UnsupportedError("Not supported"); }
 
+
   @Deprecated("Internal Use Only")
-  static AudioBuffer internalCreateAudioBuffer() {
-    return new AudioBuffer._internalWrap();
-  }
-
-  factory AudioBuffer._internalWrap() {
-    return new AudioBuffer.internal_();
-  }
+  external static Type get instanceRuntimeType;
 
   @Deprecated("Internal Use Only")
   AudioBuffer.internal_() { }
 
-  bool operator ==(other) => unwrap_jso(other) == unwrap_jso(this) || identical(this, other);
-  int get hashCode => unwrap_jso(this).hashCode;
-
   @DomName('AudioBuffer.duration')
   @DocsEditable()
-  num get duration => _blink.BlinkAudioBuffer.instance.duration_Getter_(unwrap_jso(this));
+  num get duration => _blink.BlinkAudioBuffer.instance.duration_Getter_(this);
   
   @DomName('AudioBuffer.length')
   @DocsEditable()
-  int get length => _blink.BlinkAudioBuffer.instance.length_Getter_(unwrap_jso(this));
+  int get length => _blink.BlinkAudioBuffer.instance.length_Getter_(this);
   
   @DomName('AudioBuffer.numberOfChannels')
   @DocsEditable()
-  int get numberOfChannels => _blink.BlinkAudioBuffer.instance.numberOfChannels_Getter_(unwrap_jso(this));
+  int get numberOfChannels => _blink.BlinkAudioBuffer.instance.numberOfChannels_Getter_(this);
   
   @DomName('AudioBuffer.sampleRate')
   @DocsEditable()
-  num get sampleRate => _blink.BlinkAudioBuffer.instance.sampleRate_Getter_(unwrap_jso(this));
+  num get sampleRate => _blink.BlinkAudioBuffer.instance.sampleRate_Getter_(this);
   
   void copyFromChannel(Float32List destination, int channelNumber, [int startInChannel]) {
     if (startInChannel != null) {
-      _blink.BlinkAudioBuffer.instance.copyFromChannel_Callback_3_(unwrap_jso(this), unwrap_jso(destination), channelNumber, startInChannel);
+      _blink.BlinkAudioBuffer.instance.copyFromChannel_Callback_3_(this, destination, channelNumber, startInChannel);
       return;
     }
-    _blink.BlinkAudioBuffer.instance.copyFromChannel_Callback_2_(unwrap_jso(this), unwrap_jso(destination), channelNumber);
+    _blink.BlinkAudioBuffer.instance.copyFromChannel_Callback_2_(this, destination, channelNumber);
     return;
   }
 
   void copyToChannel(Float32List source, int channelNumber, [int startInChannel]) {
     if (startInChannel != null) {
-      _blink.BlinkAudioBuffer.instance.copyToChannel_Callback_3_(unwrap_jso(this), unwrap_jso(source), channelNumber, startInChannel);
+      _blink.BlinkAudioBuffer.instance.copyToChannel_Callback_3_(this, source, channelNumber, startInChannel);
       return;
     }
-    _blink.BlinkAudioBuffer.instance.copyToChannel_Callback_2_(unwrap_jso(this), unwrap_jso(source), channelNumber);
+    _blink.BlinkAudioBuffer.instance.copyToChannel_Callback_2_(this, source, channelNumber);
     return;
   }
 
   @DomName('AudioBuffer.getChannelData')
   @DocsEditable()
-  Float32List getChannelData(int channelIndex) => wrap_jso(_blink.BlinkAudioBuffer.instance.getChannelData_Callback_1_(unwrap_jso(this), channelIndex));
+  Float32List getChannelData(int channelIndex) => _blink.BlinkAudioBuffer.instance.getChannelData_Callback_1_(this, channelIndex);
   
 }
 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 // WARNING: Do not edit - generated code.
 
 
 @DomName('AudioBufferCallback')
@@ skipping 23 matching lines @@
    *
    * See [EventStreamProvider] for usage information.
    */
   @DomName('AudioBufferSourceNode.endedEvent')
   @DocsEditable()
   @Experimental() // untriaged
   static const EventStreamProvider<Event> endedEvent = const EventStreamProvider<Event>('ended');
 
 
   @Deprecated("Internal Use Only")
-  static AudioBufferSourceNode internalCreateAudioBufferSourceNode() {
-    return new AudioBufferSourceNode._internalWrap();
-  }
-
-  external factory AudioBufferSourceNode._internalWrap();
+  external static Type get instanceRuntimeType;
 
   @Deprecated("Internal Use Only")
   AudioBufferSourceNode.internal_() : super.internal_();
 
 
   @DomName('AudioBufferSourceNode.buffer')
   @DocsEditable()
-  AudioBuffer get buffer => wrap_jso(_blink.BlinkAudioBufferSourceNode.instance.buffer_Getter_(unwrap_jso(this)));
+  AudioBuffer get buffer => _blink.BlinkAudioBufferSourceNode.instance.buffer_Getter_(this);
   
   @DomName('AudioBufferSourceNode.buffer')
   @DocsEditable()
-  set buffer(AudioBuffer value) => _blink.BlinkAudioBufferSourceNode.instance.buffer_Setter_(unwrap_jso(this), unwrap_jso(value));
+  set buffer(AudioBuffer value) => _blink.BlinkAudioBufferSourceNode.instance.buffer_Setter_(this, value);
   
   @DomName('AudioBufferSourceNode.detune')
   @DocsEditable()
   @Experimental() // untriaged
-  AudioParam get detune => wrap_jso(_blink.BlinkAudioBufferSourceNode.instance.detune_Getter_(unwrap_jso(this)));
+  AudioParam get detune => _blink.BlinkAudioBufferSourceNode.instance.detune_Getter_(this);
   
   @DomName('AudioBufferSourceNode.loop')
   @DocsEditable()
-  bool get loop => _blink.BlinkAudioBufferSourceNode.instance.loop_Getter_(unwrap_jso(this));
+  bool get loop => _blink.BlinkAudioBufferSourceNode.instance.loop_Getter_(this);
   
   @DomName('AudioBufferSourceNode.loop')
   @DocsEditable()
-  set loop(bool value) => _blink.BlinkAudioBufferSourceNode.instance.loop_Setter_(unwrap_jso(this), value);
+  set loop(bool value) => _blink.BlinkAudioBufferSourceNode.instance.loop_Setter_(this, value);
   
   @DomName('AudioBufferSourceNode.loopEnd')
   @DocsEditable()
-  num get loopEnd => _blink.BlinkAudioBufferSourceNode.instance.loopEnd_Getter_(unwrap_jso(this));
+  num get loopEnd => _blink.BlinkAudioBufferSourceNode.instance.loopEnd_Getter_(this);
   
   @DomName('AudioBufferSourceNode.loopEnd')
   @DocsEditable()
-  set loopEnd(num value) => _blink.BlinkAudioBufferSourceNode.instance.loopEnd_Setter_(unwrap_jso(this), value);
+  set loopEnd(num value) => _blink.BlinkAudioBufferSourceNode.instance.loopEnd_Setter_(this, value);
   
   @DomName('AudioBufferSourceNode.loopStart')
   @DocsEditable()
-  num get loopStart => _blink.BlinkAudioBufferSourceNode.instance.loopStart_Getter_(unwrap_jso(this));
+  num get loopStart => _blink.BlinkAudioBufferSourceNode.instance.loopStart_Getter_(this);
   
   @DomName('AudioBufferSourceNode.loopStart')
   @DocsEditable()
-  set loopStart(num value) => _blink.BlinkAudioBufferSourceNode.instance.loopStart_Setter_(unwrap_jso(this), value);
+  set loopStart(num value) => _blink.BlinkAudioBufferSourceNode.instance.loopStart_Setter_(this, value);
   
   @DomName('AudioBufferSourceNode.playbackRate')
   @DocsEditable()
-  AudioParam get playbackRate => wrap_jso(_blink.BlinkAudioBufferSourceNode.instance.playbackRate_Getter_(unwrap_jso(this)));
+  AudioParam get playbackRate => _blink.BlinkAudioBufferSourceNode.instance.playbackRate_Getter_(this);
   
   void start([num when, num grainOffset, num grainDuration]) {
     if (grainDuration != null) {
-      _blink.BlinkAudioBufferSourceNode.instance.start_Callback_3_(unwrap_jso(this), when, grainOffset, grainDuration);
+      _blink.BlinkAudioBufferSourceNode.instance.start_Callback_3_(this, when, grainOffset, grainDuration);
       return;
     }
     if (grainOffset != null) {
-      _blink.BlinkAudioBufferSourceNode.instance.start_Callback_2_(unwrap_jso(this), when, grainOffset);
+      _blink.BlinkAudioBufferSourceNode.instance.start_Callback_2_(this, when, grainOffset);
       return;
     }
     if (when != null) {
-      _blink.BlinkAudioBufferSourceNode.instance.start_Callback_1_(unwrap_jso(this), when);
+      _blink.BlinkAudioBufferSourceNode.instance.start_Callback_1_(this, when);
       return;
     }
-    _blink.BlinkAudioBufferSourceNode.instance.start_Callback_0_(unwrap_jso(this));
+    _blink.BlinkAudioBufferSourceNode.instance.start_Callback_0_(this);
     return;
   }
 
   void stop([num when]) {
     if (when != null) {
-      _blink.BlinkAudioBufferSourceNode.instance.stop_Callback_1_(unwrap_jso(this), when);
+      _blink.BlinkAudioBufferSourceNode.instance.stop_Callback_1_(this, when);
       return;
     }
-    _blink.BlinkAudioBufferSourceNode.instance.stop_Callback_0_(unwrap_jso(this));
+    _blink.BlinkAudioBufferSourceNode.instance.stop_Callback_0_(this);
     return;
   }
 
   /// Stream of `ended` events handled by this [AudioBufferSourceNode].
   @DomName('AudioBufferSourceNode.onended')
   @DocsEditable()
   @Experimental() // untriaged
   Stream<Event> get onEnded => endedEvent.forTarget(this);
 
 }
 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 
 @DomName('AudioContext')
 @SupportedBrowser(SupportedBrowser.CHROME)
 @SupportedBrowser(SupportedBrowser.FIREFOX)
 @Experimental()
 // https://dvcs.w3.org/hg/audio/raw-file/tip/webaudio/specification.html#AudioContext-section
 class AudioContext extends EventTarget {
   // To suppress missing implicit constructor warnings.
   factory AudioContext._() { throw new UnsupportedError("Not supported"); }
 
   @DomName('AudioContext.AudioContext')
   @DocsEditable()
   factory AudioContext() {
-    return wrap_jso(_blink.BlinkAudioContext.instance.constructorCallback_0_());
+    return _blink.BlinkAudioContext.instance.constructorCallback_0_();
   }
 
 
   @Deprecated("Internal Use Only")
-  static AudioContext internalCreateAudioContext() {
-    return new AudioContext._internalWrap();
-  }
-
-  external factory AudioContext._internalWrap();
+  external static Type get instanceRuntimeType;
 
   @Deprecated("Internal Use Only")
   AudioContext.internal_() : super.internal_();
 
 
   /// Checks if this type is supported on the current platform.
   static bool get supported => true;
 
   @DomName('AudioContext.currentTime')
   @DocsEditable()
-  num get currentTime => _blink.BlinkAudioContext.instance.currentTime_Getter_(unwrap_jso(this));
+  num get currentTime => _blink.BlinkAudioContext.instance.currentTime_Getter_(this);
   
   @DomName('AudioContext.destination')
   @DocsEditable()
-  AudioDestinationNode get destination => wrap_jso(_blink.BlinkAudioContext.instance.destination_Getter_(unwrap_jso(this)));
+  AudioDestinationNode get destination => _blink.BlinkAudioContext.instance.destination_Getter_(this);
   
   @DomName('AudioContext.listener')
   @DocsEditable()
-  AudioListener get listener => wrap_jso(_blink.BlinkAudioContext.instance.listener_Getter_(unwrap_jso(this)));
+  AudioListener get listener => _blink.BlinkAudioContext.instance.listener_Getter_(this);
   
   @DomName('AudioContext.sampleRate')
   @DocsEditable()
-  num get sampleRate => _blink.BlinkAudioContext.instance.sampleRate_Getter_(unwrap_jso(this));
+  num get sampleRate => _blink.BlinkAudioContext.instance.sampleRate_Getter_(this);
   
   @DomName('AudioContext.state')
   @DocsEditable()
   @Experimental() // untriaged
-  String get state => _blink.BlinkAudioContext.instance.state_Getter_(unwrap_jso(this));
+  String get state => _blink.BlinkAudioContext.instance.state_Getter_(this);
   
   @DomName('AudioContext.close')
   @DocsEditable()
   @Experimental() // untriaged
-  Future close() => wrap_jso(_blink.BlinkAudioContext.instance.close_Callback_0_(unwrap_jso(this)));
+  Future close() => convertNativePromiseToDartFuture(_blink.BlinkAudioContext.instance.close_Callback_0_(this));
   
   @DomName('AudioContext.createAnalyser')
   @DocsEditable()
-  AnalyserNode createAnalyser() => wrap_jso(_blink.BlinkAudioContext.instance.createAnalyser_Callback_0_(unwrap_jso(this)));
+  AnalyserNode createAnalyser() => _blink.BlinkAudioContext.instance.createAnalyser_Callback_0_(this);
   
   @DomName('AudioContext.createBiquadFilter')
   @DocsEditable()
-  BiquadFilterNode createBiquadFilter() => wrap_jso(_blink.BlinkAudioContext.instance.createBiquadFilter_Callback_0_(unwrap_jso(this)));
+  BiquadFilterNode createBiquadFilter() => _blink.BlinkAudioContext.instance.createBiquadFilter_Callback_0_(this);
   
   @DomName('AudioContext.createBuffer')
   @DocsEditable()
-  AudioBuffer createBuffer(int numberOfChannels, int numberOfFrames, num sampleRate) => wrap_jso(_blink.BlinkAudioContext.instance.createBuffer_Callback_3_(unwrap_jso(this), numberOfChannels, numberOfFrames, sampleRate));
+  AudioBuffer createBuffer(int numberOfChannels, int numberOfFrames, num sampleRate) => _blink.BlinkAudioContext.instance.createBuffer_Callback_3_(this, numberOfChannels, numberOfFrames, sampleRate);
   
   @DomName('AudioContext.createBufferSource')
   @DocsEditable()
-  AudioBufferSourceNode createBufferSource() => wrap_jso(_blink.BlinkAudioContext.instance.createBufferSource_Callback_0_(unwrap_jso(this)));
+  AudioBufferSourceNode createBufferSource() => _blink.BlinkAudioContext.instance.createBufferSource_Callback_0_(this);
   
   ChannelMergerNode createChannelMerger([int numberOfInputs]) {
     if (numberOfInputs != null) {
-      return wrap_jso(_blink.BlinkAudioContext.instance.createChannelMerger_Callback_1_(unwrap_jso(this), numberOfInputs));
+      return _blink.BlinkAudioContext.instance.createChannelMerger_Callback_1_(this, numberOfInputs);
     }
-    return wrap_jso(_blink.BlinkAudioContext.instance.createChannelMerger_Callback_0_(unwrap_jso(this)));
+    return _blink.BlinkAudioContext.instance.createChannelMerger_Callback_0_(this);
   }
 
   ChannelSplitterNode createChannelSplitter([int numberOfOutputs]) {
     if (numberOfOutputs != null) {
-      return wrap_jso(_blink.BlinkAudioContext.instance.createChannelSplitter_Callback_1_(unwrap_jso(this), numberOfOutputs));
+      return _blink.BlinkAudioContext.instance.createChannelSplitter_Callback_1_(this, numberOfOutputs);
     }
-    return wrap_jso(_blink.BlinkAudioContext.instance.createChannelSplitter_Callback_0_(unwrap_jso(this)));
+    return _blink.BlinkAudioContext.instance.createChannelSplitter_Callback_0_(this);
   }
 
   @DomName('AudioContext.createConvolver')
   @DocsEditable()
-  ConvolverNode createConvolver() => wrap_jso(_blink.BlinkAudioContext.instance.createConvolver_Callback_0_(unwrap_jso(this)));
+  ConvolverNode createConvolver() => _blink.BlinkAudioContext.instance.createConvolver_Callback_0_(this);
   
   DelayNode createDelay([num maxDelayTime]) {
     if (maxDelayTime != null) {
-      return wrap_jso(_blink.BlinkAudioContext.instance.createDelay_Callback_1_(unwrap_jso(this), maxDelayTime));
+      return _blink.BlinkAudioContext.instance.createDelay_Callback_1_(this, maxDelayTime);
     }
-    return wrap_jso(_blink.BlinkAudioContext.instance.createDelay_Callback_0_(unwrap_jso(this)));
+    return _blink.BlinkAudioContext.instance.createDelay_Callback_0_(this);
   }
 
   @DomName('AudioContext.createDynamicsCompressor')
   @DocsEditable()
-  DynamicsCompressorNode createDynamicsCompressor() => wrap_jso(_blink.BlinkAudioContext.instance.createDynamicsCompressor_Callback_0_(unwrap_jso(this)));
+  DynamicsCompressorNode createDynamicsCompressor() => _blink.BlinkAudioContext.instance.createDynamicsCompressor_Callback_0_(this);
   
   @DomName('AudioContext.createGain')
   @DocsEditable()
-  GainNode createGain() => wrap_jso(_blink.BlinkAudioContext.instance.createGain_Callback_0_(unwrap_jso(this)));
+  GainNode createGain() => _blink.BlinkAudioContext.instance.createGain_Callback_0_(this);
   
   @DomName('AudioContext.createMediaElementSource')
   @DocsEditable()
-  MediaElementAudioSourceNode createMediaElementSource(MediaElement mediaElement) => wrap_jso(_blink.BlinkAudioContext.instance.createMediaElementSource_Callback_1_(unwrap_jso(this), unwrap_jso(mediaElement)));
+  MediaElementAudioSourceNode createMediaElementSource(MediaElement mediaElement) => _blink.BlinkAudioContext.instance.createMediaElementSource_Callback_1_(this, mediaElement);
   
   @DomName('AudioContext.createMediaStreamDestination')
   @DocsEditable()
-  MediaStreamAudioDestinationNode createMediaStreamDestination() => wrap_jso(_blink.BlinkAudioContext.instance.createMediaStreamDestination_Callback_0_(unwrap_jso(this)));
+  MediaStreamAudioDestinationNode createMediaStreamDestination() => _blink.BlinkAudioContext.instance.createMediaStreamDestination_Callback_0_(this);
   
   @DomName('AudioContext.createMediaStreamSource')
   @DocsEditable()
-  MediaStreamAudioSourceNode createMediaStreamSource(MediaStream mediaStream) => wrap_jso(_blink.BlinkAudioContext.instance.createMediaStreamSource_Callback_1_(unwrap_jso(this), unwrap_jso(mediaStream)));
+  MediaStreamAudioSourceNode createMediaStreamSource(MediaStream mediaStream) => _blink.BlinkAudioContext.instance.createMediaStreamSource_Callback_1_(this, mediaStream);
   
   @DomName('AudioContext.createOscillator')
   @DocsEditable()
-  OscillatorNode createOscillator() => wrap_jso(_blink.BlinkAudioContext.instance.createOscillator_Callback_0_(unwrap_jso(this)));
+  OscillatorNode createOscillator() => _blink.BlinkAudioContext.instance.createOscillator_Callback_0_(this);
   
   @DomName('AudioContext.createPanner')
   @DocsEditable()
-  PannerNode createPanner() => wrap_jso(_blink.BlinkAudioContext.instance.createPanner_Callback_0_(unwrap_jso(this)));
+  PannerNode createPanner() => _blink.BlinkAudioContext.instance.createPanner_Callback_0_(this);
   
   @DomName('AudioContext.createPeriodicWave')
   @DocsEditable()
   @Experimental() // untriaged
-  PeriodicWave createPeriodicWave(Float32List real, Float32List imag) => wrap_jso(_blink.BlinkAudioContext.instance.createPeriodicWave_Callback_2_(unwrap_jso(this), unwrap_jso(real), unwrap_jso(imag)));
+  PeriodicWave createPeriodicWave(Float32List real, Float32List imag) => _blink.BlinkAudioContext.instance.createPeriodicWave_Callback_2_(this, real, imag);
   
   ScriptProcessorNode createScriptProcessor([int bufferSize, int numberOfInputChannels, int numberOfOutputChannels]) {
     if (numberOfOutputChannels != null) {
-      return wrap_jso(_blink.BlinkAudioContext.instance.createScriptProcessor_Callback_3_(unwrap_jso(this), bufferSize, numberOfInputChannels, numberOfOutputChannels));
+      return _blink.BlinkAudioContext.instance.createScriptProcessor_Callback_3_(this, bufferSize, numberOfInputChannels, numberOfOutputChannels);
     }
     if (numberOfInputChannels != null) {
-      return wrap_jso(_blink.BlinkAudioContext.instance.createScriptProcessor_Callback_2_(unwrap_jso(this), bufferSize, numberOfInputChannels));
+      return _blink.BlinkAudioContext.instance.createScriptProcessor_Callback_2_(this, bufferSize, numberOfInputChannels);
     }
     if (bufferSize != null) {
-      return wrap_jso(_blink.BlinkAudioContext.instance.createScriptProcessor_Callback_1_(unwrap_jso(this), bufferSize));
+      return _blink.BlinkAudioContext.instance.createScriptProcessor_Callback_1_(this, bufferSize);
     }
-    return wrap_jso(_blink.BlinkAudioContext.instance.createScriptProcessor_Callback_0_(unwrap_jso(this)));
+    return _blink.BlinkAudioContext.instance.createScriptProcessor_Callback_0_(this);
   }
 
   @DomName('AudioContext.createStereoPanner')
   @DocsEditable()
   @Experimental() // untriaged
-  StereoPannerNode createStereoPanner() => wrap_jso(_blink.BlinkAudioContext.instance.createStereoPanner_Callback_0_(unwrap_jso(this)));
+  StereoPannerNode createStereoPanner() => _blink.BlinkAudioContext.instance.createStereoPanner_Callback_0_(this);
   
   @DomName('AudioContext.createWaveShaper')
   @DocsEditable()
-  WaveShaperNode createWaveShaper() => wrap_jso(_blink.BlinkAudioContext.instance.createWaveShaper_Callback_0_(unwrap_jso(this)));
+  WaveShaperNode createWaveShaper() => _blink.BlinkAudioContext.instance.createWaveShaper_Callback_0_(this);
   
   void _decodeAudioData(ByteBuffer audioData, AudioBufferCallback successCallback, [AudioBufferCallback errorCallback]) {
     if (errorCallback != null) {
-      _blink.BlinkAudioContext.instance.decodeAudioData_Callback_3_(unwrap_jso(this), unwrap_jso(audioData), unwrap_jso((audioBuffer) => successCallback(wrap_jso(audioBuffer))), unwrap_jso((audioBuffer) => errorCallback(wrap_jso(audioBuffer))));
+      _blink.BlinkAudioContext.instance.decodeAudioData_Callback_3_(this, audioData, successCallback, errorCallback);
       return;
     }
-    _blink.BlinkAudioContext.instance.decodeAudioData_Callback_2_(unwrap_jso(this), unwrap_jso(audioData), unwrap_jso((audioBuffer) => successCallback(wrap_jso(audioBuffer))));
+    _blink.BlinkAudioContext.instance.decodeAudioData_Callback_2_(this, audioData, successCallback);
     return;
   }
 
   @DomName('AudioContext.resume')
   @DocsEditable()
   @Experimental() // untriaged
-  Future resume() => wrap_jso(_blink.BlinkAudioContext.instance.resume_Callback_0_(unwrap_jso(this)));
+  Future resume() => convertNativePromiseToDartFuture(_blink.BlinkAudioContext.instance.resume_Callback_0_(this));
   
   @DomName('AudioContext.suspend')
   @DocsEditable()
   @Experimental() // untriaged
-  Future suspend() => wrap_jso(_blink.BlinkAudioContext.instance.suspend_Callback_0_(unwrap_jso(this)));
+  Future suspend() => convertNativePromiseToDartFuture(_blink.BlinkAudioContext.instance.suspend_Callback_0_(this));
   
   @DomName('AudioContext.decodeAudioData')
   Future<AudioBuffer> decodeAudioData(ByteBuffer audioData) {
     var completer = new Completer<AudioBuffer>();
     _decodeAudioData(audioData,
         (value) { completer.complete(value); },
         (error) {
           if (error == null) {
             completer.completeError('');
           } else {
@@ skipping 13 matching lines @@
 @DocsEditable()
 @DomName('AudioDestinationNode')
 // https://dvcs.w3.org/hg/audio/raw-file/tip/webaudio/specification.html#AudioDestinationNode-section
 @Experimental()
 class AudioDestinationNode extends AudioNode {
   // To suppress missing implicit constructor warnings.
   factory AudioDestinationNode._() { throw new UnsupportedError("Not supported"); }
 
 
   @Deprecated("Internal Use Only")
-  static AudioDestinationNode internalCreateAudioDestinationNode() {
-    return new AudioDestinationNode._internalWrap();
-  }
-
-  external factory AudioDestinationNode._internalWrap();
+  external static Type get instanceRuntimeType;
 
   @Deprecated("Internal Use Only")
   AudioDestinationNode.internal_() : super.internal_();
 
 
   @DomName('AudioDestinationNode.maxChannelCount')
   @DocsEditable()
-  int get maxChannelCount => _blink.BlinkAudioDestinationNode.instance.maxChannelCount_Getter_(unwrap_jso(this));
+  int get maxChannelCount => _blink.BlinkAudioDestinationNode.instance.maxChannelCount_Getter_(this);
   
 }
 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 // WARNING: Do not edit - generated code.
 
 
 @DocsEditable()
 @DomName('AudioListener')
 // https://dvcs.w3.org/hg/audio/raw-file/tip/webaudio/specification.html#AudioListener-section
 @Experimental()
 class AudioListener extends DartHtmlDomObject {
   // To suppress missing implicit constructor warnings.
   factory AudioListener._() { throw new UnsupportedError("Not supported"); }
 
+
   @Deprecated("Internal Use Only")
-  static AudioListener internalCreateAudioListener() {
-    return new AudioListener._internalWrap();
-  }
-
-  factory AudioListener._internalWrap() {
-    return new AudioListener.internal_();
-  }
+  external static Type get instanceRuntimeType;
 
   @Deprecated("Internal Use Only")
   AudioListener.internal_() { }
 
-  bool operator ==(other) => unwrap_jso(other) == unwrap_jso(this) || identical(this, other);
-  int get hashCode => unwrap_jso(this).hashCode;
-
   @DomName('AudioListener.dopplerFactor')
   @DocsEditable()
-  num get dopplerFactor => _blink.BlinkAudioListener.instance.dopplerFactor_Getter_(unwrap_jso(this));
+  num get dopplerFactor => _blink.BlinkAudioListener.instance.dopplerFactor_Getter_(this);
   
   @DomName('AudioListener.dopplerFactor')
   @DocsEditable()
-  set dopplerFactor(num value) => _blink.BlinkAudioListener.instance.dopplerFactor_Setter_(unwrap_jso(this), value);
+  set dopplerFactor(num value) => _blink.BlinkAudioListener.instance.dopplerFactor_Setter_(this, value);
   
   @DomName('AudioListener.speedOfSound')
   @DocsEditable()
-  num get speedOfSound => _blink.BlinkAudioListener.instance.speedOfSound_Getter_(unwrap_jso(this));
+  num get speedOfSound => _blink.BlinkAudioListener.instance.speedOfSound_Getter_(this);
   
   @DomName('AudioListener.speedOfSound')
   @DocsEditable()
-  set speedOfSound(num value) => _blink.BlinkAudioListener.instance.speedOfSound_Setter_(unwrap_jso(this), value);
+  set speedOfSound(num value) => _blink.BlinkAudioListener.instance.speedOfSound_Setter_(this, value);
   
   @DomName('AudioListener.setOrientation')
   @DocsEditable()
-  void setOrientation(num x, num y, num z, num xUp, num yUp, num zUp) => _blink.BlinkAudioListener.instance.setOrientation_Callback_6_(unwrap_jso(this), x, y, z, xUp, yUp, zUp);
+  void setOrientation(num x, num y, num z, num xUp, num yUp, num zUp) => _blink.BlinkAudioListener.instance.setOrientation_Callback_6_(this, x, y, z, xUp, yUp, zUp);
   
   @DomName('AudioListener.setPosition')
   @DocsEditable()
-  void setPosition(num x, num y, num z) => _blink.BlinkAudioListener.instance.setPosition_Callback_3_(unwrap_jso(this), x, y, z);
+  void setPosition(num x, num y, num z) => _blink.BlinkAudioListener.instance.setPosition_Callback_3_(this, x, y, z);
   
   @DomName('AudioListener.setVelocity')
   @DocsEditable()
-  void setVelocity(num x, num y, num z) => _blink.BlinkAudioListener.instance.setVelocity_Callback_3_(unwrap_jso(this), x, y, z);
+  void setVelocity(num x, num y, num z) => _blink.BlinkAudioListener.instance.setVelocity_Callback_3_(this, x, y, z);
   
 }
 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 
 @DomName('AudioNode')
 // https://dvcs.w3.org/hg/audio/raw-file/tip/webaudio/specification.html#AudioNode-section
 @Experimental()
 class AudioNode extends EventTarget {
   // To suppress missing implicit constructor warnings.
   factory AudioNode._() { throw new UnsupportedError("Not supported"); }
 
 
   @Deprecated("Internal Use Only")
-  static AudioNode internalCreateAudioNode() {
-    return new AudioNode._internalWrap();
-  }
-
-  external factory AudioNode._internalWrap();
+  external static Type get instanceRuntimeType;
 
   @Deprecated("Internal Use Only")
   AudioNode.internal_() : super.internal_();
 
 
   @DomName('AudioNode.channelCount')
   @DocsEditable()
-  int get channelCount => _blink.BlinkAudioNode.instance.channelCount_Getter_(unwrap_jso(this));
+  int get channelCount => _blink.BlinkAudioNode.instance.channelCount_Getter_(this);
   
   @DomName('AudioNode.channelCount')
   @DocsEditable()
-  set channelCount(int value) => _blink.BlinkAudioNode.instance.channelCount_Setter_(unwrap_jso(this), value);
+  set channelCount(int value) => _blink.BlinkAudioNode.instance.channelCount_Setter_(this, value);
   
   @DomName('AudioNode.channelCountMode')
   @DocsEditable()
-  String get channelCountMode => _blink.BlinkAudioNode.instance.channelCountMode_Getter_(unwrap_jso(this));
+  String get channelCountMode => _blink.BlinkAudioNode.instance.channelCountMode_Getter_(this);
   
   @DomName('AudioNode.channelCountMode')
   @DocsEditable()
-  set channelCountMode(String value) => _blink.BlinkAudioNode.instance.channelCountMode_Setter_(unwrap_jso(this), value);
+  set channelCountMode(String value) => _blink.BlinkAudioNode.instance.channelCountMode_Setter_(this, value);
   
   @DomName('AudioNode.channelInterpretation')
   @DocsEditable()
-  String get channelInterpretation => _blink.BlinkAudioNode.instance.channelInterpretation_Getter_(unwrap_jso(this));
+  String get channelInterpretation => _blink.BlinkAudioNode.instance.channelInterpretation_Getter_(this);
   
   @DomName('AudioNode.channelInterpretation')
   @DocsEditable()
-  set channelInterpretation(String value) => _blink.BlinkAudioNode.instance.channelInterpretation_Setter_(unwrap_jso(this), value);
+  set channelInterpretation(String value) => _blink.BlinkAudioNode.instance.channelInterpretation_Setter_(this, value);
   
   @DomName('AudioNode.context')
   @DocsEditable()
-  AudioContext get context => wrap_jso(_blink.BlinkAudioNode.instance.context_Getter_(unwrap_jso(this)));
+  AudioContext get context => _blink.BlinkAudioNode.instance.context_Getter_(this);
   
   @DomName('AudioNode.numberOfInputs')
   @DocsEditable()
-  int get numberOfInputs => _blink.BlinkAudioNode.instance.numberOfInputs_Getter_(unwrap_jso(this));
+  int get numberOfInputs => _blink.BlinkAudioNode.instance.numberOfInputs_Getter_(this);
   
   @DomName('AudioNode.numberOfOutputs')
   @DocsEditable()
-  int get numberOfOutputs => _blink.BlinkAudioNode.instance.numberOfOutputs_Getter_(unwrap_jso(this));
+  int get numberOfOutputs => _blink.BlinkAudioNode.instance.numberOfOutputs_Getter_(this);
   
   void _connect(destination, [int output, int input]) {
     if ((destination is AudioNode) && output == null && input == null) {
-      _blink.BlinkAudioNode.instance.connect_Callback_1_(unwrap_jso(this), unwrap_jso(destination));
+      _blink.BlinkAudioNode.instance.connect_Callback_1_(this, destination);
       return;
     }
     if ((output is int || output == null) && (destination is AudioNode) && input == null) {
-      _blink.BlinkAudioNode.instance.connect_Callback_2_(unwrap_jso(this), unwrap_jso(destination), output);
+      _blink.BlinkAudioNode.instance.connect_Callback_2_(this, destination, output);
       return;
     }
     if ((input is int || input == null) && (output is int || output == null) && (destination is AudioNode)) {
-      _blink.BlinkAudioNode.instance.connect_Callback_3_(unwrap_jso(this), unwrap_jso(destination), output, input);
+      _blink.BlinkAudioNode.instance.connect_Callback_3_(this, destination, output, input);
       return;
     }
     if ((destination is AudioParam) && output == null && input == null) {
-      _blink.BlinkAudioNode.instance.connect_Callback_1_(unwrap_jso(this), unwrap_jso(destination));
+      _blink.BlinkAudioNode.instance.connect_Callback_1_(this, destination);
       return;
     }
     if ((output is int || output == null) && (destination is AudioParam) && input == null) {
-      _blink.BlinkAudioNode.instance.connect_Callback_2_(unwrap_jso(this), unwrap_jso(destination), output);
+      _blink.BlinkAudioNode.instance.connect_Callback_2_(this, destination, output);
       return;
     }
     throw new ArgumentError("Incorrect number or type of arguments");
   }
 
   void disconnect([destination_OR_output, int output, int input]) {
     if (destination_OR_output == null && output == null && input == null) {
-      _blink.BlinkAudioNode.instance.disconnect_Callback_0_(unwrap_jso(this));
+      _blink.BlinkAudioNode.instance.disconnect_Callback_0_(this);
       return;
     }
     if ((destination_OR_output is int) && output == null && input == null) {
-      _blink.BlinkAudioNode.instance.disconnect_Callback_1_(unwrap_jso(this), unwrap_jso(destination_OR_output));
+      _blink.BlinkAudioNode.instance.disconnect_Callback_1_(this, destination_OR_output);
       return;
     }
     if ((destination_OR_output is AudioNode) && output == null && input == null) {
-      _blink.BlinkAudioNode.instance.disconnect_Callback_1_(unwrap_jso(this), unwrap_jso(destination_OR_output));
+      _blink.BlinkAudioNode.instance.disconnect_Callback_1_(this, destination_OR_output);
       return;
     }
     if ((output is int) && (destination_OR_output is AudioNode) && input == null) {
-      _blink.BlinkAudioNode.instance.disconnect_Callback_2_(unwrap_jso(this), unwrap_jso(destination_OR_output), output);
+      _blink.BlinkAudioNode.instance.disconnect_Callback_2_(this, destination_OR_output, output);
       return;
     }
     if ((input is int) && (output is int) && (destination_OR_output is AudioNode)) {
-      _blink.BlinkAudioNode.instance.disconnect_Callback_3_(unwrap_jso(this), unwrap_jso(destination_OR_output), output, input);
+      _blink.BlinkAudioNode.instance.disconnect_Callback_3_(this, destination_OR_output, output, input);
       return;
     }
     if ((destination_OR_output is AudioParam) && output == null && input == null) {
-      _blink.BlinkAudioNode.instance.disconnect_Callback_1_(unwrap_jso(this), unwrap_jso(destination_OR_output));
+      _blink.BlinkAudioNode.instance.disconnect_Callback_1_(this, destination_OR_output);
       return;
     }
     if ((output is int) && (destination_OR_output is AudioParam) && input == null) {
-      _blink.BlinkAudioNode.instance.disconnect_Callback_2_(unwrap_jso(this), unwrap_jso(destination_OR_output), output);
+      _blink.BlinkAudioNode.instance.disconnect_Callback_2_(this, destination_OR_output, output);
       return;
     }
     throw new ArgumentError("Incorrect number or type of arguments");
   }
 
   @DomName('AudioNode.connect')
   void connectNode(AudioNode destination, [int output = 0, int input = 0]) =>
       _connect(destination, output, input);
 
   @DomName('AudioNode.connect')
   void connectParam(AudioParam destination, [int output = 0]) =>
       _connect(destination, output);
 }
 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 // WARNING: Do not edit - generated code.
 
 
 @DocsEditable()
 @DomName('AudioParam')
 // https://dvcs.w3.org/hg/audio/raw-file/tip/webaudio/specification.html#AudioParam
 @Experimental()
 class AudioParam extends DartHtmlDomObject {
   // To suppress missing implicit constructor warnings.
   factory AudioParam._() { throw new UnsupportedError("Not supported"); }
 
+
   @Deprecated("Internal Use Only")
-  static AudioParam internalCreateAudioParam() {
-    return new AudioParam._internalWrap();
-  }
-
-  factory AudioParam._internalWrap() {
-    return new AudioParam.internal_();
-  }
+  external static Type get instanceRuntimeType;
 
   @Deprecated("Internal Use Only")
   AudioParam.internal_() { }
 
-  bool operator ==(other) => unwrap_jso(other) == unwrap_jso(this) || identical(this, other);
-  int get hashCode => unwrap_jso(this).hashCode;
-
   @DomName('AudioParam.defaultValue')
   @DocsEditable()
-  num get defaultValue => _blink.BlinkAudioParam.instance.defaultValue_Getter_(unwrap_jso(this));
+  num get defaultValue => _blink.BlinkAudioParam.instance.defaultValue_Getter_(this);
   
   @DomName('AudioParam.value')
   @DocsEditable()
-  num get value => _blink.BlinkAudioParam.instance.value_Getter_(unwrap_jso(this));
+  num get value => _blink.BlinkAudioParam.instance.value_Getter_(this);
   
   @DomName('AudioParam.value')
   @DocsEditable()
-  set value(num value) => _blink.BlinkAudioParam.instance.value_Setter_(unwrap_jso(this), value);
+  set value(num value) => _blink.BlinkAudioParam.instance.value_Setter_(this, value);
   
   @DomName('AudioParam.cancelScheduledValues')
   @DocsEditable()
-  void cancelScheduledValues(num startTime) => _blink.BlinkAudioParam.instance.cancelScheduledValues_Callback_1_(unwrap_jso(this), startTime);
+  void cancelScheduledValues(num startTime) => _blink.BlinkAudioParam.instance.cancelScheduledValues_Callback_1_(this, startTime);
   
   @DomName('AudioParam.exponentialRampToValueAtTime')
   @DocsEditable()
-  void exponentialRampToValueAtTime(num value, num time) => _blink.BlinkAudioParam.instance.exponentialRampToValueAtTime_Callback_2_(unwrap_jso(this), value, time);
+  void exponentialRampToValueAtTime(num value, num time) => _blink.BlinkAudioParam.instance.exponentialRampToValueAtTime_Callback_2_(this, value, time);
   
   @DomName('AudioParam.linearRampToValueAtTime')
   @DocsEditable()
-  void linearRampToValueAtTime(num value, num time) => _blink.BlinkAudioParam.instance.linearRampToValueAtTime_Callback_2_(unwrap_jso(this), value, time);
+  void linearRampToValueAtTime(num value, num time) => _blink.BlinkAudioParam.instance.linearRampToValueAtTime_Callback_2_(this, value, time);
   
   @DomName('AudioParam.setTargetAtTime')
   @DocsEditable()
-  void setTargetAtTime(num target, num time, num timeConstant) => _blink.BlinkAudioParam.instance.setTargetAtTime_Callback_3_(unwrap_jso(this), target, time, timeConstant);
+  void setTargetAtTime(num target, num time, num timeConstant) => _blink.BlinkAudioParam.instance.setTargetAtTime_Callback_3_(this, target, time, timeConstant);
   
   @DomName('AudioParam.setValueAtTime')
   @DocsEditable()
-  void setValueAtTime(num value, num time) => _blink.BlinkAudioParam.instance.setValueAtTime_Callback_2_(unwrap_jso(this), value, time);
+  void setValueAtTime(num value, num time) => _blink.BlinkAudioParam.instance.setValueAtTime_Callback_2_(this, value, time);
   
   @DomName('AudioParam.setValueCurveAtTime')
   @DocsEditable()
-  void setValueCurveAtTime(Float32List values, num time, num duration) => _blink.BlinkAudioParam.instance.setValueCurveAtTime_Callback_3_(unwrap_jso(this), unwrap_jso(values), time, duration);
+  void setValueCurveAtTime(Float32List values, num time, num duration) => _blink.BlinkAudioParam.instance.setValueCurveAtTime_Callback_3_(this, values, time, duration);
   
 }
 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 // WARNING: Do not edit - generated code.
 
 
 @DocsEditable()
 @DomName('AudioProcessingEvent')
 // https://dvcs.w3.org/hg/audio/raw-file/tip/webaudio/specification.html#AudioProcessingEvent-section
 @Experimental()
 class AudioProcessingEvent extends Event {
   // To suppress missing implicit constructor warnings.
   factory AudioProcessingEvent._() { throw new UnsupportedError("Not supported"); }
 
 
   @Deprecated("Internal Use Only")
-  static AudioProcessingEvent internalCreateAudioProcessingEvent() {
-    return new AudioProcessingEvent._internalWrap();
-  }
-
-  external factory AudioProcessingEvent._internalWrap();
+  external static Type get instanceRuntimeType;
 
   @Deprecated("Internal Use Only")
   AudioProcessingEvent.internal_() : super.internal_();
 
 
   @DomName('AudioProcessingEvent.inputBuffer')
   @DocsEditable()
-  AudioBuffer get inputBuffer => wrap_jso(_blink.BlinkAudioProcessingEvent.instance.inputBuffer_Getter_(unwrap_jso(this)));
+  AudioBuffer get inputBuffer => _blink.BlinkAudioProcessingEvent.instance.inputBuffer_Getter_(this);
   
   @DomName('AudioProcessingEvent.outputBuffer')
   @DocsEditable()
-  AudioBuffer get outputBuffer => wrap_jso(_blink.BlinkAudioProcessingEvent.instance.outputBuffer_Getter_(unwrap_jso(this)));
+  AudioBuffer get outputBuffer => _blink.BlinkAudioProcessingEvent.instance.outputBuffer_Getter_(this);
   
   @DomName('AudioProcessingEvent.playbackTime')
   @DocsEditable()
   @Experimental() // untriaged
-  num get playbackTime => _blink.BlinkAudioProcessingEvent.instance.playbackTime_Getter_(unwrap_jso(this));
+  num get playbackTime => _blink.BlinkAudioProcessingEvent.instance.playbackTime_Getter_(this);
   
 }
 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 // WARNING: Do not edit - generated code.
 
 
 @DocsEditable()
 @DomName('AudioSourceNode')
 // https://dvcs.w3.org/hg/audio/raw-file/tip/webaudio/specification.html
 @Experimental()
 class AudioSourceNode extends AudioNode {
   // To suppress missing implicit constructor warnings.
   factory AudioSourceNode._() { throw new UnsupportedError("Not supported"); }
 
 
   @Deprecated("Internal Use Only")
-  static AudioSourceNode internalCreateAudioSourceNode() {
-    return new AudioSourceNode._internalWrap();
-  }
-
-  external factory AudioSourceNode._internalWrap();
+  external static Type get instanceRuntimeType;
 
   @Deprecated("Internal Use Only")
   AudioSourceNode.internal_() : super.internal_();
 
 
 }
 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 // WARNING: Do not edit - generated code.
 
 
 @DocsEditable()
 @DomName('BiquadFilterNode')
 // https://dvcs.w3.org/hg/audio/raw-file/tip/webaudio/specification.html#BiquadFilterNode-section
 @Experimental()
 class BiquadFilterNode extends AudioNode {
   // To suppress missing implicit constructor warnings.
   factory BiquadFilterNode._() { throw new UnsupportedError("Not supported"); }
 
 
   @Deprecated("Internal Use Only")
-  static BiquadFilterNode internalCreateBiquadFilterNode() {
-    return new BiquadFilterNode._internalWrap();
-  }
-
-  external factory BiquadFilterNode._internalWrap();
+  external static Type get instanceRuntimeType;
 
   @Deprecated("Internal Use Only")
   BiquadFilterNode.internal_() : super.internal_();
 
 
   @DomName('BiquadFilterNode.Q')
   @DocsEditable()
-  AudioParam get Q => wrap_jso(_blink.BlinkBiquadFilterNode.instance.Q_Getter_(unwrap_jso(this)));
+  AudioParam get Q => _blink.BlinkBiquadFilterNode.instance.Q_Getter_(this);
   
   @DomName('BiquadFilterNode.detune')
   @DocsEditable()
-  AudioParam get detune => wrap_jso(_blink.BlinkBiquadFilterNode.instance.detune_Getter_(unwrap_jso(this)));
+  AudioParam get detune => _blink.BlinkBiquadFilterNode.instance.detune_Getter_(this);
   
   @DomName('BiquadFilterNode.frequency')
   @DocsEditable()
-  AudioParam get frequency => wrap_jso(_blink.BlinkBiquadFilterNode.instance.frequency_Getter_(unwrap_jso(this)));
+  AudioParam get frequency => _blink.BlinkBiquadFilterNode.instance.frequency_Getter_(this);
   
   @DomName('BiquadFilterNode.gain')
   @DocsEditable()
-  AudioParam get gain => wrap_jso(_blink.BlinkBiquadFilterNode.instance.gain_Getter_(unwrap_jso(this)));
+  AudioParam get gain => _blink.BlinkBiquadFilterNode.instance.gain_Getter_(this);
   
   @DomName('BiquadFilterNode.type')
   @DocsEditable()
-  String get type => _blink.BlinkBiquadFilterNode.instance.type_Getter_(unwrap_jso(this));
+  String get type => _blink.BlinkBiquadFilterNode.instance.type_Getter_(this);
   
   @DomName('BiquadFilterNode.type')
   @DocsEditable()
-  set type(String value) => _blink.BlinkBiquadFilterNode.instance.type_Setter_(unwrap_jso(this), value);
+  set type(String value) => _blink.BlinkBiquadFilterNode.instance.type_Setter_(this, value);
   
   @DomName('BiquadFilterNode.getFrequencyResponse')
   @DocsEditable()
-  void getFrequencyResponse(Float32List frequencyHz, Float32List magResponse, Float32List phaseResponse) => _blink.BlinkBiquadFilterNode.instance.getFrequencyResponse_Callback_3_(unwrap_jso(this), unwrap_jso(frequencyHz), unwrap_jso(magResponse), unwrap_jso(phaseResponse));
+  void getFrequencyResponse(Float32List frequencyHz, Float32List magResponse, Float32List phaseResponse) => _blink.BlinkBiquadFilterNode.instance.getFrequencyResponse_Callback_3_(this, frequencyHz, magResponse, phaseResponse);
   
 }
 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 // WARNING: Do not edit - generated code.
 
 
 @DocsEditable()
 @DomName('ChannelMergerNode')
 // https://dvcs.w3.org/hg/audio/raw-file/tip/webaudio/specification.html#ChannelMergerNode-section
 @Experimental()
 class ChannelMergerNode extends AudioNode {
   // To suppress missing implicit constructor warnings.
   factory ChannelMergerNode._() { throw new UnsupportedError("Not supported"); }
 
 
   @Deprecated("Internal Use Only")
-  static ChannelMergerNode internalCreateChannelMergerNode() {
-    return new ChannelMergerNode._internalWrap();
-  }
-
-  external factory ChannelMergerNode._internalWrap();
+  external static Type get instanceRuntimeType;
 
   @Deprecated("Internal Use Only")
   ChannelMergerNode.internal_() : super.internal_();
 
 
 }
 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 // WARNING: Do not edit - generated code.
 
 
 @DocsEditable()
 @DomName('ChannelSplitterNode')
 // https://dvcs.w3.org/hg/audio/raw-file/tip/webaudio/specification.html#ChannelSplitterNode-section
 @Experimental()
 class ChannelSplitterNode extends AudioNode {
   // To suppress missing implicit constructor warnings.
   factory ChannelSplitterNode._() { throw new UnsupportedError("Not supported"); }
 
 
   @Deprecated("Internal Use Only")
-  static ChannelSplitterNode internalCreateChannelSplitterNode() {
-    return new ChannelSplitterNode._internalWrap();
-  }
-
-  external factory ChannelSplitterNode._internalWrap();
+  external static Type get instanceRuntimeType;
 
   @Deprecated("Internal Use Only")
   ChannelSplitterNode.internal_() : super.internal_();
 
 
 }
 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 // WARNING: Do not edit - generated code.
 
 
 @DocsEditable()
 @DomName('ConvolverNode')
 // https://dvcs.w3.org/hg/audio/raw-file/tip/webaudio/specification.html#ConvolverNode
 @Experimental()
 class ConvolverNode extends AudioNode {
   // To suppress missing implicit constructor warnings.
   factory ConvolverNode._() { throw new UnsupportedError("Not supported"); }
 
 
   @Deprecated("Internal Use Only")
-  static ConvolverNode internalCreateConvolverNode() {
-    return new ConvolverNode._internalWrap();
-  }
-
-  external factory ConvolverNode._internalWrap();
+  external static Type get instanceRuntimeType;
 
   @Deprecated("Internal Use Only")
   ConvolverNode.internal_() : super.internal_();
 
 
   @DomName('ConvolverNode.buffer')
   @DocsEditable()
-  AudioBuffer get buffer => wrap_jso(_blink.BlinkConvolverNode.instance.buffer_Getter_(unwrap_jso(this)));
+  AudioBuffer get buffer => _blink.BlinkConvolverNode.instance.buffer_Getter_(this);
   
   @DomName('ConvolverNode.buffer')
   @DocsEditable()
-  set buffer(AudioBuffer value) => _blink.BlinkConvolverNode.instance.buffer_Setter_(unwrap_jso(this), unwrap_jso(value));
+  set buffer(AudioBuffer value) => _blink.BlinkConvolverNode.instance.buffer_Setter_(this, value);
   
   @DomName('ConvolverNode.normalize')
   @DocsEditable()
-  bool get normalize => _blink.BlinkConvolverNode.instance.normalize_Getter_(unwrap_jso(this));
+  bool get normalize => _blink.BlinkConvolverNode.instance.normalize_Getter_(this);
   
   @DomName('ConvolverNode.normalize')
   @DocsEditable()
-  set normalize(bool value) => _blink.BlinkConvolverNode.instance.normalize_Setter_(unwrap_jso(this), value);
+  set normalize(bool value) => _blink.BlinkConvolverNode.instance.normalize_Setter_(this, value);
   
 }
 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 // WARNING: Do not edit - generated code.
 
 
 @DocsEditable()
 @DomName('DelayNode')
 // https://dvcs.w3.org/hg/audio/raw-file/tip/webaudio/specification.html#DelayNode
 @Experimental()
 class DelayNode extends AudioNode {
   // To suppress missing implicit constructor warnings.
   factory DelayNode._() { throw new UnsupportedError("Not supported"); }
 
 
   @Deprecated("Internal Use Only")
-  static DelayNode internalCreateDelayNode() {
-    return new DelayNode._internalWrap();
-  }
-
-  external factory DelayNode._internalWrap();
+  external static Type get instanceRuntimeType;
 
   @Deprecated("Internal Use Only")
   DelayNode.internal_() : super.internal_();
 
 
   @DomName('DelayNode.delayTime')
   @DocsEditable()
-  AudioParam get delayTime => wrap_jso(_blink.BlinkDelayNode.instance.delayTime_Getter_(unwrap_jso(this)));
+  AudioParam get delayTime => _blink.BlinkDelayNode.instance.delayTime_Getter_(this);
   
 }
 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 // WARNING: Do not edit - generated code.
 
 
 @DocsEditable()
 @DomName('DynamicsCompressorNode')
 // https://dvcs.w3.org/hg/audio/raw-file/tip/webaudio/specification.html#DynamicsCompressorNode
 @Experimental()
 class DynamicsCompressorNode extends AudioNode {
   // To suppress missing implicit constructor warnings.
   factory DynamicsCompressorNode._() { throw new UnsupportedError("Not supported"); }
 
 
   @Deprecated("Internal Use Only")
-  static DynamicsCompressorNode internalCreateDynamicsCompressorNode() {
-    return new DynamicsCompressorNode._internalWrap();
-  }
-
-  external factory DynamicsCompressorNode._internalWrap();
+  external static Type get instanceRuntimeType;
 
   @Deprecated("Internal Use Only")
   DynamicsCompressorNode.internal_() : super.internal_();
 
 
   @DomName('DynamicsCompressorNode.attack')
   @DocsEditable()
-  AudioParam get attack => wrap_jso(_blink.BlinkDynamicsCompressorNode.instance.attack_Getter_(unwrap_jso(this)));
+  AudioParam get attack => _blink.BlinkDynamicsCompressorNode.instance.attack_Getter_(this);
   
   @DomName('DynamicsCompressorNode.knee')
   @DocsEditable()
-  AudioParam get knee => wrap_jso(_blink.BlinkDynamicsCompressorNode.instance.knee_Getter_(unwrap_jso(this)));
+  AudioParam get knee => _blink.BlinkDynamicsCompressorNode.instance.knee_Getter_(this);
   
   @DomName('DynamicsCompressorNode.ratio')
   @DocsEditable()
-  AudioParam get ratio => wrap_jso(_blink.BlinkDynamicsCompressorNode.instance.ratio_Getter_(unwrap_jso(this)));
+  AudioParam get ratio => _blink.BlinkDynamicsCompressorNode.instance.ratio_Getter_(this);
   
   @DomName('DynamicsCompressorNode.reduction')
   @DocsEditable()
-  AudioParam get reduction => wrap_jso(_blink.BlinkDynamicsCompressorNode.instance.reduction_Getter_(unwrap_jso(this)));
+  AudioParam get reduction => _blink.BlinkDynamicsCompressorNode.instance.reduction_Getter_(this);
   
   @DomName('DynamicsCompressorNode.release')
   @DocsEditable()
-  AudioParam get release => wrap_jso(_blink.BlinkDynamicsCompressorNode.instance.release_Getter_(unwrap_jso(this)));
+  AudioParam get release => _blink.BlinkDynamicsCompressorNode.instance.release_Getter_(this);
   
   @DomName('DynamicsCompressorNode.threshold')
   @DocsEditable()
-  AudioParam get threshold => wrap_jso(_blink.BlinkDynamicsCompressorNode.instance.threshold_Getter_(unwrap_jso(this)));
+  AudioParam get threshold => _blink.BlinkDynamicsCompressorNode.instance.threshold_Getter_(this);
   
 }
 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 // WARNING: Do not edit - generated code.
 
 
 @DocsEditable()
 @DomName('GainNode')
 // https://dvcs.w3.org/hg/audio/raw-file/tip/webaudio/specification.html#GainNode
 @Experimental()
 class GainNode extends AudioNode {
   // To suppress missing implicit constructor warnings.
   factory GainNode._() { throw new UnsupportedError("Not supported"); }
 
 
   @Deprecated("Internal Use Only")
-  static GainNode internalCreateGainNode() {
-    return new GainNode._internalWrap();
-  }
-
-  external factory GainNode._internalWrap();
+  external static Type get instanceRuntimeType;
 
   @Deprecated("Internal Use Only")
   GainNode.internal_() : super.internal_();
 
 
   @DomName('GainNode.gain')
   @DocsEditable()
-  AudioParam get gain => wrap_jso(_blink.BlinkGainNode.instance.gain_Getter_(unwrap_jso(this)));
+  AudioParam get gain => _blink.BlinkGainNode.instance.gain_Getter_(this);
   
 }
 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 // WARNING: Do not edit - generated code.
 
 
 @DocsEditable()
 @DomName('MediaElementAudioSourceNode')
 // https://dvcs.w3.org/hg/audio/raw-file/tip/webaudio/specification.html#MediaElementAudioSourceNode
 @Experimental()
 class MediaElementAudioSourceNode extends AudioSourceNode {
   // To suppress missing implicit constructor warnings.
   factory MediaElementAudioSourceNode._() { throw new UnsupportedError("Not supported"); }
 
 
   @Deprecated("Internal Use Only")
-  static MediaElementAudioSourceNode internalCreateMediaElementAudioSourceNode() {
-    return new MediaElementAudioSourceNode._internalWrap();
-  }
-
-  external factory MediaElementAudioSourceNode._internalWrap();
+  external static Type get instanceRuntimeType;
 
   @Deprecated("Internal Use Only")
   MediaElementAudioSourceNode.internal_() : super.internal_();
 
 
   @DomName('MediaElementAudioSourceNode.mediaElement')
   @DocsEditable()
   @Experimental() // non-standard
-  MediaElement get mediaElement => wrap_jso(_blink.BlinkMediaElementAudioSourceNode.instance.mediaElement_Getter_(unwrap_jso(this)));
+  MediaElement get mediaElement => _blink.BlinkMediaElementAudioSourceNode.instance.mediaElement_Getter_(this);
   
 }
 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 // WARNING: Do not edit - generated code.
 
 
 @DocsEditable()
 @DomName('MediaStreamAudioDestinationNode')
 // https://dvcs.w3.org/hg/audio/raw-file/tip/webaudio/specification.html#MediaStreamAudioDestinationNode
 @Experimental()
 class MediaStreamAudioDestinationNode extends AudioNode {
   // To suppress missing implicit constructor warnings.
   factory MediaStreamAudioDestinationNode._() { throw new UnsupportedError("Not supported"); }
 
 
   @Deprecated("Internal Use Only")
-  static MediaStreamAudioDestinationNode internalCreateMediaStreamAudioDestinationNode() {
-    return new MediaStreamAudioDestinationNode._internalWrap();
-  }
-
-  external factory MediaStreamAudioDestinationNode._internalWrap();
+  external static Type get instanceRuntimeType;
 
   @Deprecated("Internal Use Only")
   MediaStreamAudioDestinationNode.internal_() : super.internal_();
 
 
   @DomName('MediaStreamAudioDestinationNode.stream')
   @DocsEditable()
-  MediaStream get stream => wrap_jso(_blink.BlinkMediaStreamAudioDestinationNode.instance.stream_Getter_(unwrap_jso(this)));
+  MediaStream get stream => _blink.BlinkMediaStreamAudioDestinationNode.instance.stream_Getter_(this);
   
 }
 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 // WARNING: Do not edit - generated code.
 
 
 @DocsEditable()
 @DomName('MediaStreamAudioSourceNode')
 // https://dvcs.w3.org/hg/audio/raw-file/tip/webaudio/specification.html#MediaStreamAudioSourceNode
 @Experimental()
 class MediaStreamAudioSourceNode extends AudioSourceNode {
   // To suppress missing implicit constructor warnings.
   factory MediaStreamAudioSourceNode._() { throw new UnsupportedError("Not supported"); }
 
 
   @Deprecated("Internal Use Only")
-  static MediaStreamAudioSourceNode internalCreateMediaStreamAudioSourceNode() {
-    return new MediaStreamAudioSourceNode._internalWrap();
-  }
-
-  external factory MediaStreamAudioSourceNode._internalWrap();
+  external static Type get instanceRuntimeType;
 
   @Deprecated("Internal Use Only")
   MediaStreamAudioSourceNode.internal_() : super.internal_();
 
 
   @DomName('MediaStreamAudioSourceNode.mediaStream')
   @DocsEditable()
-  MediaStream get mediaStream => wrap_jso(_blink.BlinkMediaStreamAudioSourceNode.instance.mediaStream_Getter_(unwrap_jso(this)));
+  MediaStream get mediaStream => _blink.BlinkMediaStreamAudioSourceNode.instance.mediaStream_Getter_(this);
   
 }
 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 // WARNING: Do not edit - generated code.
 
 
 @DocsEditable()
 @DomName('OfflineAudioCompletionEvent')
 // https://dvcs.w3.org/hg/audio/raw-file/tip/webaudio/specification.html#OfflineAudioCompletionEvent-section
 @Experimental()
 class OfflineAudioCompletionEvent extends Event {
   // To suppress missing implicit constructor warnings.
   factory OfflineAudioCompletionEvent._() { throw new UnsupportedError("Not supported"); }
 
 
   @Deprecated("Internal Use Only")
-  static OfflineAudioCompletionEvent internalCreateOfflineAudioCompletionEvent() {
-    return new OfflineAudioCompletionEvent._internalWrap();
-  }
-
-  external factory OfflineAudioCompletionEvent._internalWrap();
+  external static Type get instanceRuntimeType;
 
   @Deprecated("Internal Use Only")
   OfflineAudioCompletionEvent.internal_() : super.internal_();
 
 
   @DomName('OfflineAudioCompletionEvent.renderedBuffer')
   @DocsEditable()
-  AudioBuffer get renderedBuffer => wrap_jso(_blink.BlinkOfflineAudioCompletionEvent.instance.renderedBuffer_Getter_(unwrap_jso(this)));
+  AudioBuffer get renderedBuffer => _blink.BlinkOfflineAudioCompletionEvent.instance.renderedBuffer_Getter_(this);
   
 }
 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 // WARNING: Do not edit - generated code.
 
 
 @DocsEditable()
 @DomName('OfflineAudioContext')
 // https://dvcs.w3.org/hg/audio/raw-file/tip/webaudio/specification.html#OfflineAudioContext-section
 @Experimental()
 class OfflineAudioContext extends AudioContext {
   // To suppress missing implicit constructor warnings.
   factory OfflineAudioContext._() { throw new UnsupportedError("Not supported"); }
 
   @DomName('OfflineAudioContext.OfflineAudioContext')
   @DocsEditable()
   factory OfflineAudioContext(int numberOfChannels, int numberOfFrames, num sampleRate) {
-    return wrap_jso(_blink.BlinkOfflineAudioContext.instance.constructorCallback_3_(numberOfChannels, numberOfFrames, sampleRate));
+    return _blink.BlinkOfflineAudioContext.instance.constructorCallback_3_(numberOfChannels, numberOfFrames, sampleRate);
   }
 
 
   @Deprecated("Internal Use Only")
-  static OfflineAudioContext internalCreateOfflineAudioContext() {
-    return new OfflineAudioContext._internalWrap();
-  }
-
-  external factory OfflineAudioContext._internalWrap();
+  external static Type get instanceRuntimeType;
 
   @Deprecated("Internal Use Only")
   OfflineAudioContext.internal_() : super.internal_();
 
 
   @DomName('OfflineAudioContext.startRendering')
   @DocsEditable()
   @Experimental() // untriaged
-  Future startRendering() => wrap_jso(_blink.BlinkOfflineAudioContext.instance.startRendering_Callback_0_(unwrap_jso(this)));
+  Future startRendering() => convertNativePromiseToDartFuture(_blink.BlinkOfflineAudioContext.instance.startRendering_Callback_0_(this));
   
 }
 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 // WARNING: Do not edit - generated code.
 
 
 @DocsEditable()
@@ skipping 10 matching lines @@
    *
    * See [EventStreamProvider] for usage information.
    */
   @DomName('OscillatorNode.endedEvent')
   @DocsEditable()
   @Experimental() // untriaged
   static const EventStreamProvider<Event> endedEvent = const EventStreamProvider<Event>('ended');
 
 
   @Deprecated("Internal Use Only")
-  static OscillatorNode internalCreateOscillatorNode() {
-    return new OscillatorNode._internalWrap();
-  }
-
-  external factory OscillatorNode._internalWrap();
+  external static Type get instanceRuntimeType;
 
   @Deprecated("Internal Use Only")
   OscillatorNode.internal_() : super.internal_();
 
 
   @DomName('OscillatorNode.detune')
   @DocsEditable()
-  AudioParam get detune => wrap_jso(_blink.BlinkOscillatorNode.instance.detune_Getter_(unwrap_jso(this)));
+  AudioParam get detune => _blink.BlinkOscillatorNode.instance.detune_Getter_(this);
   
   @DomName('OscillatorNode.frequency')
   @DocsEditable()
-  AudioParam get frequency => wrap_jso(_blink.BlinkOscillatorNode.instance.frequency_Getter_(unwrap_jso(this)));
+  AudioParam get frequency => _blink.BlinkOscillatorNode.instance.frequency_Getter_(this);
   
   @DomName('OscillatorNode.type')
   @DocsEditable()
-  String get type => _blink.BlinkOscillatorNode.instance.type_Getter_(unwrap_jso(this));
+  String get type => _blink.BlinkOscillatorNode.instance.type_Getter_(this);
   
   @DomName('OscillatorNode.type')
   @DocsEditable()
-  set type(String value) => _blink.BlinkOscillatorNode.instance.type_Setter_(unwrap_jso(this), value);
+  set type(String value) => _blink.BlinkOscillatorNode.instance.type_Setter_(this, value);
   
   @DomName('OscillatorNode.setPeriodicWave')
   @DocsEditable()
   @Experimental() // untriaged
-  void setPeriodicWave(PeriodicWave periodicWave) => _blink.BlinkOscillatorNode.instance.setPeriodicWave_Callback_1_(unwrap_jso(this), unwrap_jso(periodicWave));
+  void setPeriodicWave(PeriodicWave periodicWave) => _blink.BlinkOscillatorNode.instance.setPeriodicWave_Callback_1_(this, periodicWave);
   
   void start([num when]) {
     if (when != null) {
-      _blink.BlinkOscillatorNode.instance.start_Callback_1_(unwrap_jso(this), when);
+      _blink.BlinkOscillatorNode.instance.start_Callback_1_(this, when);
       return;
     }
-    _blink.BlinkOscillatorNode.instance.start_Callback_0_(unwrap_jso(this));
+    _blink.BlinkOscillatorNode.instance.start_Callback_0_(this);
     return;
   }
 
   void stop([num when]) {
     if (when != null) {
-      _blink.BlinkOscillatorNode.instance.stop_Callback_1_(unwrap_jso(this), when);
+      _blink.BlinkOscillatorNode.instance.stop_Callback_1_(this, when);
       return;
     }
-    _blink.BlinkOscillatorNode.instance.stop_Callback_0_(unwrap_jso(this));
+    _blink.BlinkOscillatorNode.instance.stop_Callback_0_(this);
     return;
   }
 
   /// Stream of `ended` events handled by this [OscillatorNode].
   @DomName('OscillatorNode.onended')
   @DocsEditable()
   @Experimental() // untriaged
   Stream<Event> get onEnded => endedEvent.forTarget(this);
 
 }
 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 // WARNING: Do not edit - generated code.
 
 
 @DocsEditable()
 @DomName('PannerNode')
 // https://dvcs.w3.org/hg/audio/raw-file/tip/webaudio/specification.html#PannerNode
 @Experimental()
 class PannerNode extends AudioNode {
   // To suppress missing implicit constructor warnings.
   factory PannerNode._() { throw new UnsupportedError("Not supported"); }
 
 
   @Deprecated("Internal Use Only")
-  static PannerNode internalCreatePannerNode() {
-    return new PannerNode._internalWrap();
-  }
-
-  external factory PannerNode._internalWrap();
+  external static Type get instanceRuntimeType;
 
   @Deprecated("Internal Use Only")
   PannerNode.internal_() : super.internal_();
 
 
   @DomName('PannerNode.coneInnerAngle')
   @DocsEditable()
-  num get coneInnerAngle => _blink.BlinkPannerNode.instance.coneInnerAngle_Getter_(unwrap_jso(this));
+  num get coneInnerAngle => _blink.BlinkPannerNode.instance.coneInnerAngle_Getter_(this);
   
   @DomName('PannerNode.coneInnerAngle')
   @DocsEditable()
-  set coneInnerAngle(num value) => _blink.BlinkPannerNode.instance.coneInnerAngle_Setter_(unwrap_jso(this), value);
+  set coneInnerAngle(num value) => _blink.BlinkPannerNode.instance.coneInnerAngle_Setter_(this, value);
   
   @DomName('PannerNode.coneOuterAngle')
   @DocsEditable()
-  num get coneOuterAngle => _blink.BlinkPannerNode.instance.coneOuterAngle_Getter_(unwrap_jso(this));
+  num get coneOuterAngle => _blink.BlinkPannerNode.instance.coneOuterAngle_Getter_(this);
   
   @DomName('PannerNode.coneOuterAngle')
   @DocsEditable()
-  set coneOuterAngle(num value) => _blink.BlinkPannerNode.instance.coneOuterAngle_Setter_(unwrap_jso(this), value);
+  set coneOuterAngle(num value) => _blink.BlinkPannerNode.instance.coneOuterAngle_Setter_(this, value);
   
   @DomName('PannerNode.coneOuterGain')
   @DocsEditable()
-  num get coneOuterGain => _blink.BlinkPannerNode.instance.coneOuterGain_Getter_(unwrap_jso(this));
+  num get coneOuterGain => _blink.BlinkPannerNode.instance.coneOuterGain_Getter_(this);
   
   @DomName('PannerNode.coneOuterGain')
   @DocsEditable()
-  set coneOuterGain(num value) => _blink.BlinkPannerNode.instance.coneOuterGain_Setter_(unwrap_jso(this), value);
+  set coneOuterGain(num value) => _blink.BlinkPannerNode.instance.coneOuterGain_Setter_(this, value);
   
   @DomName('PannerNode.distanceModel')
   @DocsEditable()
-  String get distanceModel => _blink.BlinkPannerNode.instance.distanceModel_Getter_(unwrap_jso(this));
+  String get distanceModel => _blink.BlinkPannerNode.instance.distanceModel_Getter_(this);
   
   @DomName('PannerNode.distanceModel')
   @DocsEditable()
-  set distanceModel(String value) => _blink.BlinkPannerNode.instance.distanceModel_Setter_(unwrap_jso(this), value);
+  set distanceModel(String value) => _blink.BlinkPannerNode.instance.distanceModel_Setter_(this, value);
   
   @DomName('PannerNode.maxDistance')
   @DocsEditable()
-  num get maxDistance => _blink.BlinkPannerNode.instance.maxDistance_Getter_(unwrap_jso(this));
+  num get maxDistance => _blink.BlinkPannerNode.instance.maxDistance_Getter_(this);
   
   @DomName('PannerNode.maxDistance')
   @DocsEditable()
-  set maxDistance(num value) => _blink.BlinkPannerNode.instance.maxDistance_Setter_(unwrap_jso(this), value);
+  set maxDistance(num value) => _blink.BlinkPannerNode.instance.maxDistance_Setter_(this, value);
   
   @DomName('PannerNode.panningModel')
   @DocsEditable()
-  String get panningModel => _blink.BlinkPannerNode.instance.panningModel_Getter_(unwrap_jso(this));
+  String get panningModel => _blink.BlinkPannerNode.instance.panningModel_Getter_(this);
   
   @DomName('PannerNode.panningModel')
   @DocsEditable()
-  set panningModel(String value) => _blink.BlinkPannerNode.instance.panningModel_Setter_(unwrap_jso(this), value);
+  set panningModel(String value) => _blink.BlinkPannerNode.instance.panningModel_Setter_(this, value);
   
   @DomName('PannerNode.refDistance')
   @DocsEditable()
-  num get refDistance => _blink.BlinkPannerNode.instance.refDistance_Getter_(unwrap_jso(this));
+  num get refDistance => _blink.BlinkPannerNode.instance.refDistance_Getter_(this);
   
   @DomName('PannerNode.refDistance')
   @DocsEditable()
-  set refDistance(num value) => _blink.BlinkPannerNode.instance.refDistance_Setter_(unwrap_jso(this), value);
+  set refDistance(num value) => _blink.BlinkPannerNode.instance.refDistance_Setter_(this, value);
   
   @DomName('PannerNode.rolloffFactor')
   @DocsEditable()
-  num get rolloffFactor => _blink.BlinkPannerNode.instance.rolloffFactor_Getter_(unwrap_jso(this));
+  num get rolloffFactor => _blink.BlinkPannerNode.instance.rolloffFactor_Getter_(this);
   
   @DomName('PannerNode.rolloffFactor')
   @DocsEditable()
-  set rolloffFactor(num value) => _blink.BlinkPannerNode.instance.rolloffFactor_Setter_(unwrap_jso(this), value);
+  set rolloffFactor(num value) => _blink.BlinkPannerNode.instance.rolloffFactor_Setter_(this, value);
   
   @DomName('PannerNode.setOrientation')
   @DocsEditable()
-  void setOrientation(num x, num y, num z) => _blink.BlinkPannerNode.instance.setOrientation_Callback_3_(unwrap_jso(this), x, y, z);
+  void setOrientation(num x, num y, num z) => _blink.BlinkPannerNode.instance.setOrientation_Callback_3_(this, x, y, z);
   
   @DomName('PannerNode.setPosition')
   @DocsEditable()
-  void setPosition(num x, num y, num z) => _blink.BlinkPannerNode.instance.setPosition_Callback_3_(unwrap_jso(this), x, y, z);
+  void setPosition(num x, num y, num z) => _blink.BlinkPannerNode.instance.setPosition_Callback_3_(this, x, y, z);
   
   @DomName('PannerNode.setVelocity')
   @DocsEditable()
-  void setVelocity(num x, num y, num z) => _blink.BlinkPannerNode.instance.setVelocity_Callback_3_(unwrap_jso(this), x, y, z);
+  void setVelocity(num x, num y, num z) => _blink.BlinkPannerNode.instance.setVelocity_Callback_3_(this, x, y, z);
   
 }
 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 // WARNING: Do not edit - generated code.
 
 
 @DocsEditable()
 @DomName('PeriodicWave')
 @Experimental() // untriaged
 class PeriodicWave extends DartHtmlDomObject {
   // To suppress missing implicit constructor warnings.
   factory PeriodicWave._() { throw new UnsupportedError("Not supported"); }
 
+
   @Deprecated("Internal Use Only")
-  static PeriodicWave internalCreatePeriodicWave() {
-    return new PeriodicWave._internalWrap();
-  }
-
-  factory PeriodicWave._internalWrap() {
-    return new PeriodicWave.internal_();
-  }
+  external static Type get instanceRuntimeType;
 
   @Deprecated("Internal Use Only")
   PeriodicWave.internal_() { }
 
-  bool operator ==(other) => unwrap_jso(other) == unwrap_jso(this) || identical(this, other);
-  int get hashCode => unwrap_jso(this).hashCode;
-
 }
 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 // WARNING: Do not edit - generated code.
 
 
 @DocsEditable()
 @DomName('ScriptProcessorNode')
 // https://dvcs.w3.org/hg/audio/raw-file/tip/webaudio/specification.html#ScriptProcessorNode
 @Experimental()
 class ScriptProcessorNode extends AudioNode {
   // To suppress missing implicit constructor warnings.
   factory ScriptProcessorNode._() { throw new UnsupportedError("Not supported"); }
 
   /**
    * Static factory designed to expose `audioprocess` events to event
    * handlers that are not necessarily instances of [ScriptProcessorNode].
    *
    * See [EventStreamProvider] for usage information.
    */
   @DomName('ScriptProcessorNode.audioprocessEvent')
   @DocsEditable()
   @Experimental() // untriaged
   static const EventStreamProvider<AudioProcessingEvent> audioProcessEvent = const EventStreamProvider<AudioProcessingEvent>('audioprocess');
 
 
   @Deprecated("Internal Use Only")
-  static ScriptProcessorNode internalCreateScriptProcessorNode() {
-    return new ScriptProcessorNode._internalWrap();
-  }
-
-  external factory ScriptProcessorNode._internalWrap();
+  external static Type get instanceRuntimeType;
 
   @Deprecated("Internal Use Only")
   ScriptProcessorNode.internal_() : super.internal_();
 
 
   @DomName('ScriptProcessorNode.bufferSize')
   @DocsEditable()
-  int get bufferSize => _blink.BlinkScriptProcessorNode.instance.bufferSize_Getter_(unwrap_jso(this));
+  int get bufferSize => _blink.BlinkScriptProcessorNode.instance.bufferSize_Getter_(this);
   
   @DomName('ScriptProcessorNode.setEventListener')
   @DocsEditable()
   @Experimental() // untriaged
-  void setEventListener(EventListener eventListener) => _blink.BlinkScriptProcessorNode.instance.setEventListener_Callback_1_(unwrap_jso(this), unwrap_jso((event) => eventListener(wrap_jso(event))));
+  void setEventListener(EventListener eventListener) => _blink.BlinkScriptProcessorNode.instance.setEventListener_Callback_1_(this, eventListener);
   
   /// Stream of `audioprocess` events handled by this [ScriptProcessorNode].
 /**
    * Get a Stream that fires events when AudioProcessingEvents occur.
    * This particular stream is special in that it only allows one listener to a
    * given stream. Converting the returned Stream [asBroadcast] will likely ruin
    * the soft-real-time properties which which these events are fired and can
    * be processed.
    */
   @DomName('ScriptProcessorNode.onaudioprocess')
@@ skipping 11 matching lines @@
 
 @DocsEditable()
 @DomName('StereoPannerNode')
 @Experimental() // untriaged
 class StereoPannerNode extends AudioNode {
   // To suppress missing implicit constructor warnings.
   factory StereoPannerNode._() { throw new UnsupportedError("Not supported"); }
 
 
   @Deprecated("Internal Use Only")
-  static StereoPannerNode internalCreateStereoPannerNode() {
-    return new StereoPannerNode._internalWrap();
-  }
-
-  external factory StereoPannerNode._internalWrap();
+  external static Type get instanceRuntimeType;
 
   @Deprecated("Internal Use Only")
   StereoPannerNode.internal_() : super.internal_();
 
 
   @DomName('StereoPannerNode.pan')
   @DocsEditable()
   @Experimental() // untriaged
-  AudioParam get pan => wrap_jso(_blink.BlinkStereoPannerNode.instance.pan_Getter_(unwrap_jso(this)));
+  AudioParam get pan => _blink.BlinkStereoPannerNode.instance.pan_Getter_(this);
   
 }
 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 // WARNING: Do not edit - generated code.
 
 
 @DocsEditable()
 @DomName('WaveShaperNode')
 // https://dvcs.w3.org/hg/audio/raw-file/tip/webaudio/specification.html#dfn-WaveShaperNode
 @Experimental()
 class WaveShaperNode extends AudioNode {
   // To suppress missing implicit constructor warnings.
   factory WaveShaperNode._() { throw new UnsupportedError("Not supported"); }
 
 
   @Deprecated("Internal Use Only")
-  static WaveShaperNode internalCreateWaveShaperNode() {
-    return new WaveShaperNode._internalWrap();
-  }
-
-  external factory WaveShaperNode._internalWrap();
+  external static Type get instanceRuntimeType;
 
   @Deprecated("Internal Use Only")
   WaveShaperNode.internal_() : super.internal_();
 
 
   @DomName('WaveShaperNode.curve')
   @DocsEditable()
-  Float32List get curve => wrap_jso(_blink.BlinkWaveShaperNode.instance.curve_Getter_(unwrap_jso(this)));
+  Float32List get curve => _blink.BlinkWaveShaperNode.instance.curve_Getter_(this);
   
   @DomName('WaveShaperNode.curve')
   @DocsEditable()
-  set curve(Float32List value) => _blink.BlinkWaveShaperNode.instance.curve_Setter_(unwrap_jso(this), unwrap_jso(value));
+  set curve(Float32List value) => _blink.BlinkWaveShaperNode.instance.curve_Setter_(this, value);
   
   @DomName('WaveShaperNode.oversample')
   @DocsEditable()
-  String get oversample => _blink.BlinkWaveShaperNode.instance.oversample_Getter_(unwrap_jso(this));
+  String get oversample => _blink.BlinkWaveShaperNode.instance.oversample_Getter_(this);
   
   @DomName('WaveShaperNode.oversample')
   @DocsEditable()
-  set oversample(String value) => _blink.BlinkWaveShaperNode.instance.oversample_Setter_(unwrap_jso(this), value);
+  set oversample(String value) => _blink.BlinkWaveShaperNode.instance.oversample_Setter_(this, value);
   
 }